I've bought Ford Focus 1.8 TDDI Ghia from 2000. I had already some issues, but hopefully fixed.
I've managed to change oil and filters so I've went for some drive testing.
I've noticed that my Turbo (is it?) gives noise, similar to that:
It happens when you start to accelerate hardly.
When it start to squeak you can just have revs stabilized on e.g 2k RPM and it still squeaks.
You need to push clutch so engine will idle and squeak stops.
Squeak it's not related with engine RPMs. I think it's related with turbo blowing, because when it squeaks even if you make your engine revs higher, squeak have same pitch.
Do you have idea is it faulty turbo? (Another thing that previous seller forgot to tell about).
... I hope that there is air leak or something, but it's not whistle it's like squeak...